[    2.616212] ip (258) used greatest stack depth: 12232 bytes left
[    5.564672] ip (1063) used greatest stack depth: 12008 bytes left
[   17.968975] ip (1721) used greatest stack depth: 11960 bytes left
[   52.153084] netem: version 1.3
[  572.473199] pm_nl_ctl (25037) used greatest stack depth: 11864 bytes left